• Genuine Ariston Auto Air Vent
• The automatic air vent is a pressure safeguard in the central heating unit. This part works by using a float to release an accumulation of air.
• As water circulates through the heating/cooling system, a float within the automatic air vent opens or closes depending on the water level.
• If the system contains only water, the float will be pushed to the top and the vent will be closed until the water level drops.

See suitability below

• Ariston GENUS HE 24
• Ariston GENUS HE 30
• Ariston GENUS HE 38
• Ariston GENUS HE 24
• Ariston GENUS HE 30
• Ariston CLAS HE 24
• Ariston CLAS HE 30
• Ariston CLAS HE 38
• Ariston CLAS HE 18
• Ariston CLAS HE 24
• Ariston CLAS HE 30
• Ariston E COMBI 24 FF
• Ariston E COMBI 30 FF
• Ariston E COMBI 38 FF
• Ariston E SYSTEM 24
• Ariston E SYSTEM 30
• 21 FF SYSTEM (IE)
• 28 FF SYSTEM (IE)
• HE EVO 30
• HE EVO 38
• HE SYSTEM 18
• HE SYSTEM 24
• HE SYSTEM EVO 18
• HE SYSTEM EVO 24
• EVO 24
• EVO L 30 EU
• EVO SYSTEM 18
• Egis HE 24
• Egis HE 30
• Egis Premium 24
• Egis Premium 30